I bought the car as a non runner, had been advised it had the head gasket done, brake cylinder, brake lines replaced, fuel pump replaced, thermostat replaced. All appears to checkout from inspections. Advised it just needed coolant hoses plumbing back together... and yes it does. But the water junction for the heater on the top is heavily corroded and one of the exits/pipes has broken off (and no where to be seen) . So I need to replace this. It is likely the sensor is well stuck in there to. Pa...